ERIC Number: ED454863
Record Type: Non-Journal
Publication Date: 2000-Nov
Reference Count: N/A
Resource Discovery Using Z39.50: Promise and Reality.
Moen, William E.
This paper provides a portrayal of Z39.50 (a communications protocol that enables two systems to exchange messages for the purpose of information retrieval) that explains its flexibility in response to a variety of information retrieval requirements in the networked environment. The first section presents an overview of Z39.50, including the evolving context for the protocol, the abstract model for information retrieval, the Z39.50 model, and semantics for searching and retrieval. The second section discusses resource discovery, including a comparison of search engines and Z39.50, granularity and aggregation, and the Z39.50 model of resource discovery. The third section addresses interoperability, including levels and types of interoperability, semantics for searching, and Z39.50 profiles as solutions to semantic interoperability. The fourth section covers the application of Z39.50 in virtual union catalogs and cross-domain searching. The final section considers Z39.50's future in networked information retrieval. (Contains 23 references.) (MES)
Descriptors: Information Networks, Information Retrieval, Information Systems, Models, Semantics, Standards
For full text: http://lcweb.loc.gov/catdir/bibcontrol/moen_paper.html.
Publication Type: Reports - Descriptive; Speeches/Meeting Papers
Education Level: N/A
Authoring Institution: N/A